At 18:30 on April 30, 2026, the meteorological observatory of Nyingchi, Xizang, issued a blue warning signal for heavy rainfall: it is expected that from 20:00 on April 30 to 20:00 on May 1, there will be light rain in most of Nyingchi on cloudy days, light to moderate rain (5~17mm) in some towns of Bomi, Chayu and Gongbujiangda, moderate to heavy rain (17~38mm) in most of Motuo and some towns of Milin, heavy rain (25~50mm) in low altitude towns in the south, and sleet or blizzard (15~30mm) in high-altitude mountains. Defense measures: It is necessary to prevent secondary disasters such as flash floods, landslides, avalanches, and collapses that may be caused by heavy rainfall; At the same time, rainy days result in slippery roads with low visibility, and mountainous roads are prone to snow accumulation. Attention should be paid to road traffic safety; Precipitation, cooling, and strong winds have adverse effects on cultural and tourism travel, major projects, and energy supply. It is recommended that relevant departments take preventive measures in advance.